- Osaka (22) made £30.7m in prize money and endorsements over the past 12 months- This broke the previous single-year earnings record of £24.4m set in 2015 by Russia's Maria Sharapova- This was £1.15m more than the amount earned by 38-year-old Williams who had led the last 4 years- Since 1990 when the list began tennis players have top the highest earning women's athletes list